[英]AWS start document analysis using textract not working
我正在为我的学校做一个项目,我应该使用 textract 对表单进行文档分析,并将 output 运行到 A2I,其中算法将确定表单是否被批准、拒绝或需要审查。 一旦将文档上传到 S3,应该触发此文本 lambda function。 但是,当我遵循此文档时,我会遇到语法错误; https://docs.aws.amazon.com/textract/latest/dg/API_StartDocumentAnalysis.html
我的代码是:
import urllib.parse
import boto3
print('Loading function')
##Clients
s3 = boto3.client('s3')
textract = boto3.client('textract')
def analyzedata(bucketName,documentKey):
print("Loading")
AnalyzedData= textract.StartDocumentAnalysis("DocumentLocation": {
"S3Object": {
"Bucket": "bucketName",
"Name": "documentKey",
})
detectedText = ''
# Print detected text
for item in AnalyzedData['Blocks']:
if item['BlockType'] == 'LINE':
detectedText += item['Text'] + '\n'
return detectedText
def writeTextractToS3File(textractData, bucketName, createdS3Document):
print('Loading writeTextractToS3File')
generateFilePath = os.path.splitext(createdS3Document)[0] + '.csv'
s3.put_object(Body=textractData, Bucket=bucketName, Key=generateFilePath)
print('Generated ' + generateFilePath)
def lambda_handler(event, context):
#print("Received event: " + json.dumps(event, indent=2))
# Get the object from the event and show its content type
bucket = event['Records'][0]['s3']['bucket']['name']
key = urllib.parse.unquote_plus(event['Records'][0]['s3']['object']['key'], encoding='utf-8')
try:
detectedText = analyzedata(bucket, key)
writeTextractToS3File(detectedText, bucket, key)
return 'Processing Done!'
except Exception as e:
print(e)
print('Error getting object {} from bucket {}. Make sure they exist and your bucket is in the same region as this function.'.format(key, bucket))
raise e
代码尚未完成,但我已经收到语法错误:
"errorMessage": "Syntax error in module 'lambda_function': invalid syntax (lambda_function.py, line 13)",
"errorType": "Runtime.UserCodeSyntaxError",
"stackTrace": [
" File \"/var/task/lambda_function.py\" Line 13\n AnalyzedData= textract.Start_Document_Analysis(\"DocumentLocation\": { \n"
]
}
根据boto3 docs ,您的语法应该更像:
AnalyzedData= textract.start_document_analysis(DocumentLocation={
"S3Object": {
"Bucket": "bucketName",
"Name": "documentKey",
})
另请注意, FeatureTypes
参数是根据需要列出的。
您应该尝试 pip 安装 awscli
pip install awscli
或 pip3 如果效果更好
然后导入并尝试运行代码。
我认为您为此缺少一个起始大括号字符。
AnalyzedData= textract.StartDocumentAnalysis("DocumentLocation": { # missing { in this line
"S3Object": {
"Bucket": "bucketName",
"Name": "documentKey",
})
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